drivers/net/vxge/vxge-main.c: Use pr_<level> and netdev_<level>

Use pr_fmt, pr_<level> and netdev_<level> where appropriate.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Jon Mason <jon.mason@exar.com>
Signed-off-by: David S. Miller <davem@davemloft.net>